Game device



Patented Mar. 8, 1949 UNITED S TATES PATE-N T OFF ICE GAME DEVICE SamYankelevitz, BrooklynyN. Y.

Application August 30, 194`6,"Seial jN'o.- 6935876 1 Claim. l

This invention relates to a playing Idevice commonly known as a yo-yo.

Broadly, it is an object of my invention to provide a playing devicewhich is easily assembled by separably locking a male and female parttogether by compression of a string which locks the string between thetwo parts.

More particularly, it is an object of my invention to provide a plasticplaying device which can be easily and rapidly disassembled forreplacing a worn string and assembled again Without the means of toolsor extra parts.

Another object is to provide a plastic playing device which can bemolded of different colors so that the color scheme of the device can beeasily changed.

Still another object is to provide strengthening members which concealthe inner structure and also adds beauty and utility to the device.

For a fuller understanding of the nature and. objects of my inventionreference is had to the following detailed description in connectionwith the accompanying drawings, in which:

Figure 1 is an inside plan view of the female part of the device,

Figure 2 is an inside plan view of the male part of the device,

Figure 3 is a section taken through line 3-3 of Figure 6 with a stringinserted between the parts,

Figure 4 is a sectional view taken through line 4-4 of Figure 2,

Figure 5 is a sectional view taken through line 5 5 of Figure 1,

v Figure 6 is an outside plan view of the device,

Figure 7 is an end or side view of the device with string attached,

Figure 8 is a sectional view taken through line 8--8 of Figure 1.

Referring to the drawing, numera1 In represents a circular hollow femalemember, preferably made of plastic, having strengthening ribs I I whichare in line with the inner circumferential edge I2 and begin at theinner wa-ll and run to a central hub I3 which has a central hole I4.Numeral I5 represents a similar circular hollow male member, also havingstrengthening ribs IB in line with the inner circumferential edge I1 andwhich begin at the inner wall and run to the central hub I8. Hub I8 hasa circular extension I9 which has a central opening 20 providingresiliency for the extension I9 and a slot 2| at its end. Extension I9ts into opening I4 loosely and its end 22 is sufficiently long so thatif it is inserted to the bottom 23 of opening or hole I4 a space remainsbetween the edges I2 and Il to permit string 24 to pass.

The outer faces of both members I0 and I5 have ribs 25 and 26 which arespaced over the inner ribs II and I6, respectively and run into acentral area 21. Should the device be dropped the ribs 25 and 2B andarea 21 take up the shock at the same time these ribs cover the shadowthat would be east by the inner ribs due to the thinness of the plasticwalls. The inner ribs II and I6 are tapered for greater strength, asshown in Figure 8.

In order to assemble the device one end of string 24 is placed into theslot 2|. Extension I9 is then inserted into hole I4 and slight pressureis applied upon the outside central parts of members I 0 and I5, thusforcing extension I9 into the hole I4 compressing the string 24 betweenthe extension I9 and the walls of the hole I4, as shown in Figure 3. Theresiliency and compression of the string retains the two parts I0 and I5together and the string 24 passes out through the space 28 providedbetween the two parts I0 and I5. The opening 20 in extension I9 providesadditional resiliency.

To play with the'device, string 24 is wound about the extension I9 andwhile the free end of string 24 is held in Ithe hand the device isdropped causing it to spin yas the string uncoils. When the devicereaches the fastened end of the string the spin of the device causes itto wind the string about the extension I9 and run up the string again. Adownward movement of the arm holding the free end of the string will aidin winding the string about the hub or extension I9 so that the devicecontinues to run up and down the string as though it appear to beattached to an elastic strand.

Should the string become worn it is a simple matter to pull the twoparts I 0 and I5 apart and insert a new string. If a tighter iit isrequired, a slightly heavier string may be used. This is not possible insimilar devices heretofore made.

It is obvious that various changes may be made in the details ofconstruction such as increasing or reducing the number of ribs and theshape and contour of the device without departing from the generalspirit of the invention.

Iclaim:

A -device of the character described 4comprised of a circular hollowmale, a female member and a string, a female hub and a male hub at theinner central parts of said members, said members having strengtheningtapered outer ribs running from the outer edges to said hubs, said malehub having an extension tting loosely within said female hub, said malehub having a longitudinal opening therein providing resiliency for saidextension and a slit across its extreme end to receive the end of saidstring, said members having inner strengthening ribs ush with the innerflange and extending to the central hub, a bottom stop Yat the end ofsaid female hub for said male extension providing a space between theouter edges of said members, said outer ribs coinciding with said innerribs to take up shock and eliminate shadow of the inner ribs, saidstring having an end portion within said slit clamped and compressedbetween said extension l5 and the inner walls of said female hub andpassing out through the space between said vmembers and holding saidmembers together.

SAM YANKELEVITZ.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS Number Name Date 596,479 Chapell Jan. 4, 18981,866,697 Blackburn July 12, 1932 lo 2,412,519 Kuhn Dec. 10, 1932FOREIGN PATENTS Number Country Date 19,565 Great Britain Apr. 9, 1914'749,712 France Feb. 21, 1933

